1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, 13 * software distributed under the License is distributed on an 14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 15 * KIND, either express or implied. See the License for the 16 * specific language governing permissions and limitations 17 * under the License. 18 */ 19 20 package org.apache.myfaces.orchestra.conversation.jsf; 21 22 import org.apache.myfaces.orchestra.conversation.ConversationManager; 23 24 import javax.faces.context.FacesContext; 25 26 /** 27 * Some helpers usable for public use 28 */ 29 public final class JsfConversationUtils 30 { 31 private JsfConversationUtils() 32 { 33 } 34 35 /** 36 * <p>if no conversation with name <code>conversationName</code> is active a navigation with 37 * the given action will be issued</p> 38 * <p/> 39 * Notice: optionally you can use the conversationName as "fromAction" in your faces-config.xml 40 * </p> 41 */ 42 public static void ensureConversation(String conversationName, String action) 43 { 44 if (!ConversationManager.getInstance().hasConversation(conversationName)) 45 { 46 FacesContext.getCurrentInstance().getApplication().getNavigationHandler().handleNavigation( 47 FacesContext.getCurrentInstance(), 48 conversationName, 49 action 50 ); 51 } 52 } 53 }